void authenticate()

in sources/src/main/java/com/google/solutions/jitaccess/web/RequestContext.java [63:110]

40 lines of code
4 McCabe index (conditional complexity)


  void authenticate(
    @NotNull EndUserId userId,
    @NotNull Directory directory,
    @NotNull Device device
  ) {
    if (isAuthenticated()) {
      throw new IllegalStateException(
        "Request context has been authenticated before");
    }

    this.authenticationContext.subject = new Subject() {
      private @Nullable Set<Principal> cachedPrincipals;
      private final @NotNull Object cachedPrincipalsLock = new Object();

      @Override
      public @NotNull EndUserId user() {
        return userId;
      }

      @Override
      public @NotNull Directory directory() {
        return directory;
      }

      @Override
      public @NotNull Set<Principal> principals() {
        //
        // Resolve lazily.
        //
        synchronized (this.cachedPrincipalsLock)
        {
          if (this.cachedPrincipals == null) {
            try {
              this.cachedPrincipals = RequestContext.this
                .subjectResolver
                .resolvePrincipals(this.user(), directory);
            }
            catch (AccessException | IOException e) {
              throw new UncheckedExecutionException(e);
            }
          }

          return this.cachedPrincipals;
        }
      }
    };
    this.authenticationContext.device = device;
  }